TY  - JOUR
A1  - Melnick, Daniel
A1  - Moreno, Marcos
A1  - Cisternas, Marco
A1  - Tassara, Andres
T1  - Darwin seismic gap closed by the 2010 Maule earthquake
JF  - Andean geology
N2  - The Maule earthquake (Mw 8.8) that affected south-central Chile on February 27, 2010 was preceded by the 1835 event documented by FitzRoy and Darwin. The relation between both events has been controversial. Fault slip in 2010 estimated by Lorito et al. (2011) is less than expected from 175 years of strain accumulation, leading them to conclude only limited overlap between the 2010 and 1835 events, and that a Mw 7.5-8 event could still strike the Concepcion region. However, Lorito et al.'s model was based on displacements obtained from only 6 GPS stations and underpredicts observations from recent studies. Here we show that an alternative model based on 169 GPS displacements reproduces the data better, suggesting Lorito et al.'s main conclusion is not correct. Based on a slip deficit map, we suggest the seismic gap opened in 1835 was most likely closed in 2010.
KW  - Maule earthquake
KW  - Coseismic slip distribution
KW  - Slip deficit
KW  - Seismic gap
Y1  - 2012
U6  - https://doi.org/10.5027/andgeoV39n3-a11
SN  - 0718-7092
VL  - 39
IS  - 3
SP  - 558
EP  - 563
PB  - Servicio Nacional de Geologìa y Minerìa
CY  - Santiago
ER  -